Race briefing: UTMB

Pierre Quirroulle

🏃🏼‍♂️ Enduraw Race Briefing for Pierre for UTMB 🏃‍♀️

1. 🏃🏼‍♂️ - Runner info

InformationsValue
NameQuirroulle
First NamePierre
NationalityFrance
Age33
TeamPalamousse Trail Club

Pierre, here is your race briefing for UTMB, we wish you a great performance for this race, best of luck!

2. 🏔 - Race Analysis

ParametersValueUnit
Distance176.41km
Elevation Gain9940.0m
Elevation Loss9952.0m
Max altitude2579.0m
Min altitude810.0m
Avg altitude1708.21m
Distance gradient ≥ 1% 83km

⏬ Below, you can see your race local elevation, gradient and a 3D visualization of the profile.

🟩 Green areas refer to steeper negative gradients, while 🟥 red areas to steeper positive ones, with regard to the UTMB profile. 🎢

📊 The UTMB can be compared to similar races in terms of elevation and distances:

🗺️ Here you have the map of the race. You can zoom in to explore and visualize the trace:

3. 📈 - Pacing Strategy

Your pacing plan is customized according to 4 points:

🥇 Your expected finish time.

⛰️ Your positive and negative elevation gain.

⏱️ Your pacing strategy.

⏳ The natural drift at the end of the race.

This will give you crossing points to respect at key race points/aid station!

Aid StationKMDistance between (km)TimeAverage pace(min/km)
Chamonix (Start)0.00.000:00:0000:00
Les Houches7.87.800:22:252:51
Saint-Gervais21.613.701:11:293:34
Les Contamines31.29.701:44:473:26
Notre Dame De La Gorge35.74.401:57:502:57
La Balme39.94.202:12:383:30
Col Du Bonhomme43.73.802:28:494:14
Refuge De La Croix Du Bonhomme45.72.102:36:353:46
Les Chapieux51.05.202:52:253:00
Col De La Seigne61.810.803:31:573:39
Col Des Pyramides Calcaires64.52.703:42:574:01
Refuge Elisabetta67.22.703:52:323:36
Lac Combal70.43.204:01:482:54
Arête Du Mont Favre73.12.704:14:064:33
Checrouit - Maison Vieille77.74.604:26:142:37
Courmayeur Forum Sport Center82.75.004:42:083:09
Refuge Bertone88.25.505:05:504:19
Refuge Bonatti95.87.605:28:152:56
Arnouvaz101.05.205:44:323:08
Grand Col Ferret105.74.706:04:134:12
La Peule109.33.606:16:523:30
La Fouly115.66.406:35:232:54
Praz De Fort123.78.106:59:513:01
Champex-Lac129.55.807:20:153:32
Plan De L'Au134.44.907:35:543:12
La Giète141.06.708:01:443:52
Trient145.94.908:13:462:26
Les Tseppes150.04.008:29:083:49
Vallorcine158.08.108:59:213:44
Col Des Montets162.74.609:12:422:52
Tête De Béchar164.51.809:20:144:07
La Flégère169.44.909:37:353:33
Chamonix (Finish)176.47.010:00:003:10

4. ⛈ - Weather conditions

(Updated 24 hours before the race, within 72h range)

ParametersValueUnit
Max temperature10°C
Min Temperature4°C
Average Temperature6°C
Wind speed (at departure)2.4km/h
Wind direction (at departure)60.3°
Risk of rain100.0/

☀️🌡️🍃 At each aid station, the weather is predicted from your checkpoint goal time :

Aid StationCould Coverage (%)Temperature (°C)Wind Speed (km/h)Humidity (%)Departure Time
Chamonix (Start)1009.14.3592025-03-11 14:53:00
Les Houches1008.95.2642025-03-11 15:15:25
Saint-Gervais10010.22.0652025-03-11 16:04:29
Les Contamines1006.34.9712025-03-11 16:37:47
Notre Dame De La Gorge1005.65.6752025-03-11 16:50:50
La Balme1001.91.5732025-03-11 17:05:38
Col Du Bonhomme100-2.113.7832025-03-11 17:21:49
Refuge De La Croix Du Bonhomme100-3.213.7832025-03-11 17:29:35
Les Chapieux1003.65.4682025-03-11 17:45:25
Col De La Seigne100-4.118.1902025-03-11 18:24:57
Col Des Pyramides Calcaires100-5.415.0962025-03-11 18:35:57
Refuge Elisabetta100-3.27.9942025-03-11 18:45:32
Lac Combal100-1.77.9942025-03-11 18:54:48
Arête Du Mont Favre100-4.08.9972025-03-11 19:07:06
Checrouit - Maison Vieille100-1.45.5912025-03-11 19:19:14
Courmayeur Forum Sport Center1001.70.8972025-03-11 19:35:08
Refuge Bertone100-1.62.3972025-03-11 19:58:50
Refuge Bonatti100-1.96.11002025-03-11 20:21:15
Arnouvaz99-0.56.2972025-03-11 20:37:32
Grand Col Ferret100-4.69.4962025-03-11 20:57:13
La Peule
(1 hour sleep)
93-1.48.1822025-03-11 22:09:52
La Fouly
(1 hour sleep)
1001.815.0722025-03-11 23:28:23
Praz De Fort
(1 hour sleep)
1003.82.2722025-03-12 00:52:51
Champex-Lac
(1 hour sleep)
1000.93.1712025-03-12 02:13:15
Plan De L'Au
(1 hour sleep)
762.72.6682025-03-12 03:28:54
La Giète
(1 hour sleep)
97-1.22.1752025-03-12 04:54:44
Trient
(1 hour sleep)
1002.75.4742025-03-12 06:06:46
Les Tseppes
(1 hour sleep)
95-1.18.7812025-03-12 07:22:08
Vallorcine
(1 hour sleep)
1003.86.7782025-03-12 08:52:21
Col Des Montets1003.710.8772025-03-12 09:05:42
Tête De Béchar1001.29.4852025-03-12 09:13:14
La Flégère100-0.410.3882025-03-12 09:30:35
Chamonix (Finish)975.33.2832025-03-12 09:53:00

👕 Make sure your equipment is adapted to the weather you will face during the race! 🧊🔥

🤓 Enduraw advices:

  • Use light but warm layers during the night : be an oignon ! 🌙
  • Make sure your clothes breath enough to optimize thermo-regulation 🌡️
  • At high altitude, sun glasses are good allies to avoid luminosity disturbances 🕶️
  • Get technical accessories you can easily wear/take off when moving from sunlight to darker areas 🌲

5. ⏱️ - Pacing Plan

6. 🥤🍟 - Feeding and Hydration

Nutrition and hydration are crucial to the success of a race! It is very individual and we have estimated your average carbohydrates intake based on your gender, height, age and weight (if not explicitly stated from your habits).

⏱️ Carbohydrates per hour : 60 (g/hour),

🍎 Total carbohydrates ingestion: 598.72 (g),

💦 Total liquid ingestion: 5987 (mL).

Aid StationKM25g CHO portion500mL water
Chamonix (Start)0.000
Les Houches7.810
Saint-Gervais21.621
Les Contamines31.211
Notre Dame De La Gorge35.710
La Balme39.901
Col Du Bonhomme43.710
Refuge De La Croix Du Bonhomme45.700
Les Chapieux51.010
Col De La Seigne61.811
Col Des Pyramides Calcaires64.510
Refuge Elisabetta67.201
Lac Combal70.410
Arête Du Mont Favre73.100
Checrouit - Maison Vieille77.710
Courmayeur Forum Sport Center82.701
Refuge Bertone88.210
Refuge Bonatti95.811
Arnouvaz101.010
Grand Col Ferret105.710
La Peule
(1 hour sleep)
109.301
La Fouly
(1 hour sleep)
115.610
Praz De Fort
(1 hour sleep)
123.710
Champex-Lac
(1 hour sleep)
129.511
Plan De L'Au
(1 hour sleep)
134.400
La Giète
(1 hour sleep)
141.011
Trient
(1 hour sleep)
145.910
Les Tseppes
(1 hour sleep)
150.000
Vallorcine
(1 hour sleep)
158.021
Col Des Montets162.700
Tête De Béchar164.500
La Flégère169.411
Chamonix (Finish)176.410

❗At each aid station, this is the amount of carbs and water you should have ingested ❗

🤓 Enduraw advices:

  • 🚩 Do not try new nutrition on race day! Make sure you eat food you know and trained with 🏃‍➡️
  • To counterbalance sweating, make sure you have isotonic drinks or salty food during your effort 🧂
  • Alternate between hot and cold food ☕🧋
  • Chose different carbs inputs to keep taste and motivation 🥨🍫🍑
  • Performance also stand in your pleasure! Add pleasure aliments, and not only carbs if needed 🧀🥚

👑 - More features

📈 For greater accuracy, your nutrition can be even more personalized with your exact intake per hour.
This can be determined by experience (what you're used to, what worked well for you in the past) or by carrying out laboratory tests.

🏆 To achieve your greatest goals, pacing plans can be optimized with regard to your physiological response to the effort (heart rate, energetic output).

Contact us to pursue individualization deeper and exploit your full potential!

This race briefing has been proposed by Enduraw
  • Enduraw is a sports performance research laboratory.
  • We believe data can help us visualize/understand/predict more accurately.
  • With Enduraw we turn raw data into relevant analyses.